One vertex per element, one color per generator, with an edge from x to x·s.
(3,4)(6,7)(9,10,13,11)(12,15,16,14)(18,22)(19,25)(24,29)(27,31)(33,34,37,38)(35,39,42,45)(36,40,43,46)(41,47,44,48)(1,2,5,8)(3,6,4,7)(9,10,13,11)(12,14,16,15)(20,28)(24,29)(27,31)(30,32)(34,38)(36,43)(39,45)(41,44)(1,2)(3,6)(4,7)(5,8)(9,11,13,10)(12,15,16,14)(17,18)(19,26)(20,24)(21,22)(23,25)(27,32)(28,29)(30,31)(33,34)(35,39)(36,40)(37,38)(41,47)(42,45)(43,46)(44,48)(1,3,5,4)(2,6,8,7)(9,12)(10,14)(11,15)(13,16)(17,19)(18,23)(20,27)(21,25)(22,26)(24,30)(28,31)(29,32)(33,35,37,42)(34,39,38,45)(36,44,43,41)(40,48,46,47)(1,4,5,3)(2,7,8,6)(17,20)(18,24)(19,27)(21,28)(22,29)(23,30)(25,31)(26,32)(33,36,37,43)(34,40,38,46)(35,41,42,44)(39,47,45,48)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.